Nano & value chains

Articles about Nanosilver

Wikipedia article on 'Silver Nano'
*'Silver Nano' is a Samsung trademark for an antibacterial technology which uses silver nanoparticles in washing machines, refrigerators, air conditioners, air purifiers and vacuum cleaners

Silver nanoparticles deadly to bacteria
*Antibacterial paint (using silver) can coat wood, plastic, glass & more
*nanosilver interacts with the outer membrane of bacteria, causing structural damage, which leads to death
*The process by which this paint is created is totally eco-friendly: it causes zero pollution. What about its disposal?

Trouble with regulating use of nano: how do we define nano? If we say it is anything under 100nm, does that mean that a piece of silver 99nm should be regulated differently than a piece of silver 101nm?